public OperateTypeAttribute(ESingleOperateType type1, params ESingleOperateType[] restType)
{
OperateType = typeof(ESingleOperateType);
_OperateTypeList.Add(type1);
if (restType != null)
{
foreach (var item in restType)
{
if (!_OperateTypeList.Contains(item))
{
_OperateTypeList.Add(item);
}
}
}
}
public bool CanExecute(object param, ESingleOperateType operType)
{
if (!(param is EquipmentBase))
{
return(false);
}
EquipmentBase equip = param as EquipmentBase;
SingleOperate so = new SingleOperate()
{
EquipmentType = equip.GetType(), OperateType = operType
};
ObservableCollection <OperateCondition> operateConditionList = null;
SingleOperConditionDic.TryGetValue(so, out operateConditionList);
if (operateConditionList == null)
{
return(false); //（重要）没有操作条件的记录，不是没有限制随便操作，而是不能操作。没有限制的操作ConditionList为空集合而非没有
}
foreach (var operCondition in operateConditionList)
{
//找需要操作的设备中关联的设备
Type deviceType = equip.GetType();
PropertyInfo[] propertyInfos = deviceType.GetProperties();
foreach (var propertyInfo in propertyInfos)
{
if (propertyInfo.Name == operCondition.PropertyName)
{
if (propertyInfo.PropertyType.IsValueType) //也可用 if (operCondition.PropertyValue != null)
{
if (propertyInfo.GetValue(equip).Equals(operCondition.PropertyValue) == false) //这里!=有问题，为什么？两个false不相等
{
return(false);
}
}
else if (propertyInfo.PropertyType.IsSubclassOf(typeof(EquipmentBase))) //如果是单设备
{
var relatedEquip = propertyInfo.GetValue(equip); //实际上必须是EquipmentBase子类
foreach (var relatedProp in propertyInfo.PropertyType.GetProperties())
{
foreach (var pair in operCondition.RelatedEquipProList)
{
if (pair.PropertyName == relatedProp.Name)
{
if (pair.PropertyValue.Equals(relatedProp.GetValue(relatedEquip)) == false)
{
return(false);
}
}
}
}
}
//else if (propertyInfo.PropertyType.IsAssignableFrom(typeof(ICollection)))//为什么不行
else if (propertyInfo.GetValue(equip) is ICollection) //如果是集合类
{
ICollection relatedEquips = (ICollection)propertyInfo.GetValue(equip); //关联的设备
foreach (var relatedEquip in relatedEquips)
{
foreach (var relatedProp in relatedEquip.GetType().GetProperties())
{
foreach (var pair in operCondition.RelatedEquipProList)
{
if (pair.PropertyName == relatedProp.Name)
{
if (pair.PropertyValue.Equals(relatedProp.GetValue(relatedEquip)) == false)
{
return(false);
}
}
}
}
}
}
}
}
}
return(true);
}
